CVE-2021-21120: Use after free in WebSQL
First published: Mon Dec 21 2020(Updated: )
Use after free in WebSQL in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Credit: chrome-cve-admin@google.com Nan Wang @eternalsakura13 360 Alpha LabGuang Gong 360 Alpha Lab
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome (Trace Event) | <88.0.4324.96 | 88.0.4324.96 |
| Google Chrome (Trace Event) | <88.0.4324.96 | |
| Microsoft Edge (Chromium-based) | <88.0.705.50 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-21117
- CVE-2021-21118
- CVE-2021-21119
- CVE-2021-21121
- CVE-2021-21122
- CVE-2021-21123
- CVE-2021-21124
- CVE-2021-21125
- CVE-2020-16044
- CVE-2021-21126
- CVE-2021-21127
- CVE-2021-21128
- CVE-2021-21129
- CVE-2021-21130
- CVE-2021-21131
- CVE-2021-21132
- CVE-2021-21133
- CVE-2021-21134
- CVE-2021-21135
- CVE-2021-21136
- CVE-2021-21137
- CVE-2021-21138
- CVE-2021-21139
- CVE-2021-21140
- CVE-2021-21141
Frequently Asked Questions
What is the severity of CVE-2021-21120?
CVE-2021-21120 has a high severity rating due to potential heap corruption that could be exploited by an attacker.
How do I fix CVE-2021-21120?
To fix CVE-2021-21120, users should update Google Chrome to version 88.0.4324.96 or later.
What versions of software are affected by CVE-2021-21120?
CVE-2021-21120 affects versions of Google Chrome prior to 88.0.4324.96 and Microsoft Edge Chromium versions prior to 88.0.705.50.
What type of vulnerability is CVE-2021-21120?
CVE-2021-21120 is classified as a use after free vulnerability in WebSQL.
Can CVE-2021-21120 be exploited remotely?
Yes, CVE-2021-21120 can potentially be exploited remotely through a crafted HTML page.
- agent/type
- agent/weakness
- agent/remedy
- agent/references
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/severity
- agent/title
- agent/first-publish-date
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/chrome-releases
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/google
- canonical/google chrome (trace event)
- vendor/microsoft
- canonical/microsoft edge (chromium-based)